Re: [NF] VoIP Phone Systems and PSTN Signalling

Author: Ted Roche

Posted: 2016-03-28 at 09:37:17

On Mon, Mar 28, 2016 at 9:31 AM, Ken Dibble <krdibble@stny.rr.com> wrote:

>

> Is it an "industry standard" for these systems to fail to pass through basic

> signaling from the PSTN (public switched telephone network) to the ears of

> people using the phones?

>

> We recently purchased such a system and, while it transmit a "ringing"

> signal when we dial a number outside our system, it does not transmit "busy"

> signals when the line we dialed is engaged. It also does not transmit fax

> tones when we dial a fax number (useful for diagnosing faxing problems), nor

> does it transmit recorded audio from a phone company, such as "The number

> you have reached is no longer in service" (useful for what should be obvious

> reasons).

>

None of that sounds right. A VOIP/PBX system should have more features

than the old copper circuits, not less.

--

Ted Roche

Ted Roche & Associates, LLC

http://www.tedroche.com

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